CN216772200U

CN216772200U - High-strength powder discharging knife

Info

Publication number: CN216772200U
Application number: CN202122858259.8U
Authority: CN
Inventors: 陈康明
Original assignee: Zhongshan Tianzhou Electronic Technology Co ltd
Current assignee: Zhongshan Tianzhou Electronic Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-06-17
Anticipated expiration: 2031-11-19

Abstract

A high-strength powder discharging knife comprises a back plate and a bending part arranged on the back plate, wherein the back plate is cross-sectionally L-shaped after being connected, the two sides of the back plate are provided with a first screw hole and a second screw hole near the edges, the distance between the outermost point of the first screw hole and the edge of the back plate is 3.5-4mm, the distance between the outermost point of the second screw hole and the edge of the back plate is 1.5-2mm, the thickness of the bending part is 1-1.5mm, the first screw hole is oval, one side of the first screw hole is also provided with a third screw hole which is oval, the second screw hole is round, one side of the second screw hole is provided with a fourth screw hole which is round, the side surface of the back plate is opposite to the bending part, the extension length of the extension part is 0.8-1.2mm, and the extension part is not connected with the bending part, the beneficial effect of this application does: this application is convenient for customer's production and maintenance, and secondly the whole atress of support is more even, the problem of the deformation that can significantly reduce.

Description

High-strength powder discharging knife

Technical Field

The utility model relates to the field of printing consumables, in particular to a high-strength powder discharging knife.

Background

A contact developing selenium drum for laser printer is composed of laser beam emitted by laser, acousto-optic deflecting modulator, binary image-text lattice information from computer, character generator, 9 HF oscillators controlled by signals generated by synchronizer, frequency synthesizer and power amplifier, and acousto-optic modulator. The modulated light beam is emitted into the multi-surface rotating mirror, and then is focused by the wide-angle focusing mirror and then is emitted onto the surface of the selenium drum through the light guide, so that the angular velocity scanning is changed into linear velocity scanning, and the whole scanning process is completed. The surface of the selenium drum is firstly charged by a charging electrode to obtain a certain potential, then the surface of the selenium drum is exposed by a laser beam carrying image-text image information, so that an electrostatic latent image is formed on the surface of the selenium drum, the electrostatic latent image is developed by a magnetic brush developer, the latent image is converted into a visible toner image, the toner is transferred onto plain paper under the action of an electric field of a transfer electrode when passing through a transfer area, and finally the toner is fixed by a preheating plate and a high-temperature hot roller, so that characters and images are fused on the paper. Before printing the image-text information, the cleaning roller removes the ink powder which is not transferred, the electricity-eliminating lamp removes the residual charge on the drum, and the drum is thoroughly cleaned by the cleaning paper system, so that a new working cycle can be started.

However, the existing powder discharging knife generally has the following defects that 1, the production and the maintenance of a client are inconvenient; 2. deformation is likely to occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the technical scheme provides the high-strength powder discharging knife, and the design can greatly improve the strength of the powder discharging knife and prevent the powder discharging knife from deforming.

In order to achieve the purpose, the technical scheme is as follows:

the utility model provides a go out powder sword of high strength, includes the backplate and sets up bend on the backplate, it is connected the back transversal L shape of personally submitting, the backplate both sides are close to the edge and are equipped with first screw hole and second screw hole, wherein the outermost point of first screw hole with distance between the edge of backplate is between 3.5-4mm, the outermost point of second screw hole with distance between the edge of backplate is between 1.5-2mm, the thickness of the portion of bending is between 1-1.5 mm.

In some embodiments, the first screw hole is oval and a third screw hole is also provided at one side thereof, and the second screw hole is circular and a fourth screw hole is provided at one side thereof.

In some embodiments, the side face of the back plate extends along the length thereof relative to the bending part, the extending length of the extending part is 0.8-1.2mm, and the extending part is not connected with the bending part.

The beneficial effect of this application does:

this application is convenient for customer's production and maintenance, and secondly the whole atress of support is more even, the problem of the deformation that can significantly reduce.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a first schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-2, preferably, the high-strength doctor blade includes a back plate 1 and a bending portion 2 disposed on the back plate 1, the cross section of the bending portion 2 is L-shaped after connection, a first screw hole 3 and a second screw hole 4 are disposed at two sides of the back plate 1 near the edges, wherein a distance L between an outermost point of the first screw hole 3 and the edge of the back plate 1 is 3.75mm, a distance D between an outermost point of the second screw hole 4 and the edge of the back plate 1 is 1.9mm, and a thickness of the bending portion 2 is 1.2 mm;

at first this application sets up the screw hole on the backplate, be for the sake of convenience production dismouting and subsequent maintenance, secondly as shown in fig. 2, the distance design of screw hole is in order to let the screw hole be close to toward center department, thereby whole atress is more even when fixed, prevent that its during operation from taking place deformation, and also solved former weld face and beaten the inboard backplate of screw hole behind the screw and do not have the problem that the support position easily produced deformation, the portion of bending at last has sufficient thickness to support the required intensity of scraper during operation.

In this embodiment, the first screw hole 3 is oval and one side thereof is also provided with a third screw hole 5 which is oval, the second screw hole 4 is round and one side thereof is provided with a fourth screw hole 6 which is round, and fine adjustment can be performed through the oval screw hole in order to improve the adaptability.

In this embodiment, the side of the back plate 1 extends along its length relative to the bending portion 2 to form an extension portion 7, the extension length R of the extension portion 7 is 1mm, and the extension portion is not connected to the bending portion 2, as shown in fig. 2, in order to do so, when the acting force of the scraper is applied to the bending portion, the whole area of the back plate is larger than the area of the bending portion, so that the acting force of the bending portion can be effectively absorbed, and sufficient strength is ensured to support the bending portion, thereby preventing deformation.

The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the scope of the present application, which is within the scope of the present application, except that the same or similar principles and basic structures as the present application may be used.

Claims

1. The utility model provides a go out powder sword of high strength, its characterized in that is in including backplate (1) and setting portion of bending (2) on backplate (1), its connection back transversal personally submits L shape, backplate (1) both sides are close to the edge and are equipped with first screw hole (3) and second screw hole (4), wherein the outermost point of first screw hole (3) with distance between the edge of backplate (1) is between 3.5-4mm, the outermost point of second screw hole (4) with distance between the edge of backplate (1) is between 1.5-2mm, the thickness of the portion of bending (2) is between 1-1.5 mm.

2. The high-strength powder discharging knife according to claim 1, characterized in that: the first screw hole (3) is oval and one side of the first screw hole is also provided with a third screw hole (5) which is oval, and the second screw hole (4) is round and one side of the second screw hole is provided with a fourth screw hole (6) which is round.

3. The high-strength powder discharging knife according to claim 2, characterized in that: the side face of the back plate (1) extends along the length of the bending part (2) relative to the extending part (7), the extending length of the extending part (7) is 0.8-1.2mm, and the extending part is not connected with the bending part (2).